1998 Fiscal Year Annual Research Report

日英科学研究協力事業による新型中性子分光器の共同開発研究

Research Project

Project/Area Number	10044101
Research Category	Grant-in-Aid for international Scientific Research
Section	Joint Research .
Research Institution	The High Energy Accelerator Research Organization
Principal Investigator	新井正敏高エネルギー加速器研究機構, 物質構造科学研究所, 教授 (30175955)
Co-Investigator(Kenkyū-buntansha)	池田進 , 教授 (80132679) 三沢正勝新潟大学, 理学部, 教授 (80005941) 神山崇筑波大学, 物質工学系, 講師 (60194982) 柴田薫東北大学, 金属材料研究所, 助手 (60183836) 本河光博東北大学, 金属材料研究所, 教授 (30028188)
Keywords	日英科学技術協力 / 中性子散乱
Research Abstract	本国際学術研究は、日本と英国が協力して、英国ラザフォード・アップルトン研究所の大強度スポレーション・パルス中性子源施設ISISに単結晶用高性能チョッパー型分光器MAPSを建設し、中性子散乱による先端的物質科学研究を行うためのものである。日本側は主として中性子検出器の開発及び設置を担当する。分光器の建設は平成9年より3ヵ年掛けて行う。平成10年、11年度は分光器の建設を行い、平成12年度は分光器全体の調整を行う。この共同建設作業と並行して、すでにISISに設置されてある中性子分光器を用いた先端的共同研究を進めている。なお、本協力事業の協力協定は、平成8年12月23日に高エネルギー加速器研究機構(KEK)と英国中央研究所審議会(CCLRC)の間で締結した。平成10年度は、MAPS分光器の共同設置作業、中性子ビームによる遮蔽等に関する試験、及び、ISISに設置されている他の分光器を用いた、磁性体、非晶質、フラクタル、生体高分子、酸化物高温超伝導体等の静的および動的構造の解明のための実験研究を実施した。平成10年度内にラザフォード・アップルトン研究所で行われた実験課題数は23件であった。長期滞在者1名を含み、日本側から本協力研究に派遣した人員は24名におよんだ。また、研究打ち合わせのため英国より2名を招聘した。

Research Products

(24 results)

All Other

All Publications (24 results)

[Publications] H Ikeda: "Anomalous diffusion in percolating magnets with fractal geometry" Physica B. 241-243. 585-587 (1998)
[Publications] S Itoh: "Temperature dependence of spin dynamics in the S=3/2 Heisenberg antiferromagnetic chain C_3VCl_3" Physica B. 241-243. 546-548 (1998)
[Publications] Y Inamura: "Intermediate-range structure and low-energy dynamics of densified SiO_2 glass" Physica B. 241-243. 903-905 (1998)
[Publications] N Nishijima: "High energy spin excitation of a high-Tc superconductor YBa_2Cu_3O_<6.6>" Physica B. 241-243. 856-858 (1998)
[Publications] D Welz: "Magnetic excitation of dimerized CuGeO_5 : continuum scattering and interchain modulation" Physica B. 241-243. 540-542 (1998)
[Publications] M Fujita: "Spin dynamics of the spin-Peierls system CuGeO_5 at various temperatures" Physica B. 241-243. 528-530 (1998)
[Publications] M Azuma: "Disappearance of the spin gap in a Zn-doped 2-leg ladder compound Sr(Cu_<1-x>Zn_x)_2O_3" J Phys SOc Jpn. 67. 740 (1998)
[Publications] M Azuma: "Impurity effects on a two-leg spin ladder compound SrCu_2O_3" J Mag Mag Mater. 177-181. 655 (1998)
[Publications] O Yamamuro: "Neutron powder diffraction study of (ND_4)_2SeCl_6 under high pressure" Physica B. 241-243. 466-458 (1998)
[Publications] R S Eccleston: "The spin dynamics of the spin ladder,dimer chain material Sr_<14>Cu_<24>O_<41>" Phys Rev Lett. 81. 1702-1705 (1998)
[Publications] T Otomo: "Observation of collective excitations in the amorphous alloy Ni_<67>Zr_<33>" J Non-Cryst Solids. 232-234. 613-618 (1998)
[Publications] T Yamaguchi: "Structure of subcritical and supercritical hydrogen-bonded liquids and solutions" J Mol Liq. 78. 43-50 (1998)
[Publications] H Ikeda: "Crossover from homogeneous to fractal excitations in the near-percolating Heisenberg antiferromagnet" J Phys Soc Jpn. 67. 3376-3379 (1998)
[Publications] T Kanaya: "Heterogeneity of amorphous polymers with various fragility indices as studied in terms of non-Gaussian parameter" J Non-Cryst.Solids. 235/237. 212-218 (1998)
[Publications] S Itoh: "Spin Dynamics in Two-Dimensinal Percolating Heisenberg Antiferromagnets" J Phys Soc Jpn. 67. 3610-3616 (1998)
[Publications] H Ikeda: "Neutron Study of fracton excitations in percolating antiferromagnet" J Magn Magn Mater. 177-181. 139-140 (1998)
[Publications] H Fukazawa: "Incoherent inelastic neutron scattering measurements on ice XI ; the proton-ordered phase of ice Ih doped with KOH" Chemical Physics Letters. 282. 215-218 (1998)
[Publications] H Fukazawa: "Proton ordering in Antarctic ice observed by Raman and neutron scattering" Chemical Physics Letters. 294. 554-558 (1998)
[Publications] J C Smith: "Motions in native and denatured proteins" Physica B. 241-243. 1110-1114 (1998)
[Publications] K Ohyama: "Magnetic excitations in the Kondo compound CeRhSb" Physica B. in press.
[Publications] T Ikeda: "Neutron diffraction study of carbon dioxide clathrate hydrate" J Phys Chem Solid. in press.
[Publications] Ruben A Dilanian: "Neutron diffraction study of the Phase Transition in K_2Mn_2(SO_4)_3" J Phys Chem Solid. in press.
[Publications] M Kataoka: "Low energy dynamics of globular proteins studied by inelastic neutron scattering" J Phys Chem Solid. in press.
[Publications] 鳥飼直也: "繊維学会誌(繊維と工業)54巻12号" 繊維学会, 5 (1998)

1998 Fiscal Year Annual Research Report

日英科学研究協力事業による新型中性子分光器の共同開発研究

Principal Investigator

新井 正敏 高エネルギー加速器研究機構, 物質構造科学研究所, 教授 (30175955)

Research Products

[Publications] H Ikeda: "Anomalous diffusion in percolating magnets with fractal geometry" Physica B. 241-243. 585-587 (1998)

[Publications] S Itoh: "Temperature dependence of spin dynamics in the S=3/2 Heisenberg antiferromagnetic chain C_3VCl_3" Physica B. 241-243. 546-548 (1998)

[Publications] Y Inamura: "Intermediate-range structure and low-energy dynamics of densified SiO_2 glass" Physica B. 241-243. 903-905 (1998)

[Publications] N Nishijima: "High energy spin excitation of a high-Tc superconductor YBa_2Cu_3O_<6.6>" Physica B. 241-243. 856-858 (1998)

[Publications] D Welz: "Magnetic excitation of dimerized CuGeO_5 : continuum scattering and interchain modulation" Physica B. 241-243. 540-542 (1998)

[Publications] M Fujita: "Spin dynamics of the spin-Peierls system CuGeO_5 at various temperatures" Physica B. 241-243. 528-530 (1998)

[Publications] M Azuma: "Disappearance of the spin gap in a Zn-doped 2-leg ladder compound Sr(Cu_<1-x>Zn_x)_2O_3" J Phys SOc Jpn. 67. 740 (1998)

[Publications] M Azuma: "Impurity effects on a two-leg spin ladder compound SrCu_2O_3" J Mag Mag Mater. 177-181. 655 (1998)

[Publications] O Yamamuro: "Neutron powder diffraction study of (ND_4)_2SeCl_6 under high pressure" Physica B. 241-243. 466-458 (1998)

[Publications] R S Eccleston: "The spin dynamics of the spin ladder,dimer chain material Sr_<14>Cu_<24>O_<41>" Phys Rev Lett. 81. 1702-1705 (1998)

[Publications] T Otomo: "Observation of collective excitations in the amorphous alloy Ni_<67>Zr_<33>" J Non-Cryst Solids. 232-234. 613-618 (1998)

[Publications] T Yamaguchi: "Structure of subcritical and supercritical hydrogen-bonded liquids and solutions" J Mol Liq. 78. 43-50 (1998)

[Publications] H Ikeda: "Crossover from homogeneous to fractal excitations in the near-percolating Heisenberg antiferromagnet" J Phys Soc Jpn. 67. 3376-3379 (1998)

[Publications] T Kanaya: "Heterogeneity of amorphous polymers with various fragility indices as studied in terms of non-Gaussian parameter" J Non-Cryst.Solids. 235/237. 212-218 (1998)

[Publications] S Itoh: "Spin Dynamics in Two-Dimensinal Percolating Heisenberg Antiferromagnets" J Phys Soc Jpn. 67. 3610-3616 (1998)

[Publications] H Ikeda: "Neutron Study of fracton excitations in percolating antiferromagnet" J Magn Magn Mater. 177-181. 139-140 (1998)

[Publications] H Fukazawa: "Incoherent inelastic neutron scattering measurements on ice XI ; the proton-ordered phase of ice Ih doped with KOH" Chemical Physics Letters. 282. 215-218 (1998)

[Publications] H Fukazawa: "Proton ordering in Antarctic ice observed by Raman and neutron scattering" Chemical Physics Letters. 294. 554-558 (1998)

[Publications] J C Smith: "Motions in native and denatured proteins" Physica B. 241-243. 1110-1114 (1998)

[Publications] K Ohyama: "Magnetic excitations in the Kondo compound CeRhSb" Physica B. in press.

[Publications] T Ikeda: "Neutron diffraction study of carbon dioxide clathrate hydrate" J Phys Chem Solid. in press.

[Publications] Ruben A Dilanian: "Neutron diffraction study of the Phase Transition in K_2Mn_2(SO_4)_3" J Phys Chem Solid. in press.

[Publications] M Kataoka: "Low energy dynamics of globular proteins studied by inelastic neutron scattering" J Phys Chem Solid. in press.

[Publications] 鳥飼直也: "繊維学会誌(繊維と工業)54巻12号" 繊維学会, 5 (1998)

新井正敏高エネルギー加速器研究機構, 物質構造科学研究所, 教授 (30175955)